<template>
  <div class="home-page">
    <div class="banner">
      <div class="container">
        <h1 class="logo-font">雨泣</h1>
        <p>A place to share your knowledge.</p>
      </div>
    </div>

    <div class="container page">
      <div class="row">
        <div class="col-md-9">
          <div class="feed-toggle">
            <ul class="nav nav-pills outline-active">
              <li v-if="user" class="nav-item">
                <nuxt-link
                  class="nav-link"
                  :class="{
                    active: tab === 'your_feed',
                  }"
                  exact
                  :to="{
                    name: 'home',
                    query: {
                      tab: 'your_feed',
                    },
                  }"
                  >Your Feed</nuxt-link
                >
              </li>
              <li class="nav-item">
                <nuxt-link
                  class="nav-link"
                  :class="{
                    active: tab === 'global_feed',
                  }"
                  exact
                  :to="{
                    name: 'home',
                  }"
                  >Global Feed</nuxt-link
                >
              </li>
              <li v-if="tag" class="nav-item">
                <nuxt-link
                  class="nav-link"
                  :class="{
                    active: tab === 'tag',
                  }"
                  exact
                  :to="{
                    name: 'home',
                    query: {
                      tab: 'tag',
                      tag: tag,
                    },
                  }"
                  ># {{ tag }}</nuxt-link
                >
              </li>
            </ul>
          </div>

          <div
            class="article-preview"
            v-for="article in articles"
            :key="article.slug"
          >
            <div class="article-meta">
              <nuxt-link
                :to="{
                  name: 'profile',
                  params: {
                    username: article.author.username,
                  },
                }"
              >
                <img :src="article.author.image" />
              </nuxt-link>
              <div class="info">
                <nuxt-link
                  class="author"
                  :to="{
                    name: 'profile',
                    params: {
                      username: article.author.username,
                    },
                  }"
                >
                  {{ article.author.username }}
                </nuxt-link>
                <span class="date">{{
                  article.createdAt | date("MMM DD, YYYY")
                }}</span>
              </div>
              <button
                class="btn btn-outline-primary btn-sm pull-xs-right"
                :class="{
                  active: article.favorited,
                }"
                @click="onFavorite(article)"
                :disabled="article.favoriteDisabled"
              >
                <i class="ion-heart"></i> {{ article.favoritesCount }}
              </button>
            </div>
            <nuxt-link
              class="preview-link"
              :to="{
                name: 'article',
                params: {
                  slug: article.slug,
                },
              }"
            >
              <h1>{{ article.title }}</h1>
              <p>{{ article.description }}</p>
              <span>Read more...</span>
            </nuxt-link>
          </div>

          <!-- 分页列表 -->
          <nav>
            <ul class="pagination">
              <li
                class="page-item"
                :class="{
                  active: item === page,
                }"
                v-for="item in totalPage"
                :key="item"
              >
                <nuxt-link
                  class="page-link"
                  :to="{
                    name: 'home',
                    query: {
                      page: item,
                      tag: $route.query.tag,
                      tab: tab,
                    },
                  }"
                  >{{ item }}</nuxt-link
                >
              </li>
            </ul>
          </nav>
          <!-- /分页列表 -->
        </div>

        <div class="col-md-3">
          <div class="sidebar">
            <p>Popular Tags</p>

            <div class="tag-list">
              <nuxt-link
                :to="{
                  name: 'home',
                  query: {
                    tab: 'tag',
                    tag: item,
                  },
                }"
                class="tag-pill tag-default"
                v-for="item in tags"
                :key="item"
                >{{ item }}</nuxt-link
              >
            </div>
          </div>
        </div>
      </div>
    </div>
  </div>
</template>
<script>
import { getArticles, getTags } from "@/api/index"
export default {
  
  name: "home",
   async asyncData () {
    const page = Number.parseInt(query.page|| 1)
    const limit = 20
    const { data } = await getArticles({
      limit,
      offse: (page - 1) * limit
    })

    const { data: tagData} = await getTags()
    return {
     articles: data.articles,
     articlesCount: data.articlesCount,
     tags: tagData.data,
     page,
     limit
    }
  },
   watchQuery: ['page', 'tag', 'tab'],
  computed:{
    titalPage () {
      return Math.ceil(this.articlesCount / this.limit)
    }
  }
};
</script>